Installing freebsd 5.4 release

[Surekha]

Hi,

 

I have been working on linux but new to Free BSD.

 

I am facing some problem in installing FreeBSD 5.4 release.

 

I downloaded the following source code 

 

kame-20060220-freebsd54-snap.tar

 

and tried to install on a machine which already has FreeBSD 5.2.1 release.

 

But I am getting some error as follows:

 

*  ERROR: version of config(8) does not match kernel! 
    config version = 500012, version required = 500013 

    Make sure that /usr/src/usr.sbin/config is in sync 
    with your /usr/src/sys and install a new config binary 
    before trying this again. 

    If running the new config fails check your config 
    file against the GENERIC or LINT config files for 
    changes in config syntax, or option/device naming 
    conventions 

I don't have the source code of FreeBSD 5.2.1 release. Please help me in
resolving it.

Thanks & Regards,

Surekha.